Too Long; Didn't Read
Jekyll is a template engine changing markdown documents on static HTML webpages. You can host anywyere, because you don't need databases or server that has PHP or Python. GitHub has a whitelisted list of plugins, but Polyglot allows adding many languages on same page without need of complete rebuild or restructure. I wanted to have it in multiple languages, like Polish and English, but it is not natively available natively. I learned that GitHub is not simply building everything you throw at it, but its whitelist of supported plugins is not on this list.